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84 lines
2.4 KiB
84 lines
2.4 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "SegmentResizeFromStartCommand.h"
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#include <tdelocale.h>
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#include "base/Event.h"
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#include "base/Segment.h"
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#include "document/BasicCommand.h"
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namespace Rosegarden
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{
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SegmentResizeFromStartCommand::SegmentResizeFromStartCommand(Segment *s,
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timeT time) :
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BasicCommand(i18n("Resize Segment"), *s,
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std::min(time, s->getStartTime()),
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std::max(time, s->getStartTime())),
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m_segment(s),
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m_oldStartTime(s->getStartTime()),
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m_newStartTime(time)
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{
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// nothing else
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}
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SegmentResizeFromStartCommand::~SegmentResizeFromStartCommand()
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{
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// nothing
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}
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void
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SegmentResizeFromStartCommand::modifySegment()
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{
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if (m_newStartTime < m_oldStartTime) {
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m_segment->fillWithRests(m_newStartTime, m_oldStartTime);
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} else {
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for (Segment::iterator i = m_segment->begin();
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m_segment->isBeforeEndMarker(i); ) {
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Segment::iterator j = i;
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++j;
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if ((*i)->getAbsoluteTime() >= m_newStartTime)
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break;
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if ((*i)->getAbsoluteTime() + (*i)->getDuration() <= m_newStartTime) {
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m_segment->erase(i);
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} else {
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Event *e = new Event
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(**i, m_newStartTime,
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(*i)->getAbsoluteTime() + (*i)->getDuration() - m_newStartTime);
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m_segment->erase(i);
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m_segment->insert(e);
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}
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i = j;
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}
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}
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}
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}
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